Recently I came across this article about a previously undumped prototype for "Power Up Baseball" it's basically Midways attempt at a Baseball version of NBA Jam or NFL Blitz.
https://gamehistory.org/powerupbaseball/
The game actually runs on Incredible Technologies 32-bit hardware (used by Golden Tee 98/99, World Class Bowling, and Shuffle Shot). Most likely because it's designed to be played with trackballs...
It actually supports 2 players each with a trackball and 5-buttons, so a really unique control panel is required.
I recently put together my own conversion after picking up a reasonably priced Golden Tee 99 PCB.
It uses 16 27c080 EPROMs so the ROMs may end up costing you more than the pcb
The conversion is mostly just a ROM swap though there are some SMD Jumpers that need to be changed and some of them are located in really annoying spots.
instructions here: https://github.com/DickBlackshack/PowerUpBaseball/blob/master/docs/PCBGuide.txt
I'm curious if anyone else has tried this. I haven't really been able to play it due to the trackball requirement.
Though strangely the location test cabinet photo from the article shows it with joysticks and only 4 buttons per player:
The game definitely references "Trackballs" in the instructions and test mode, so they're not some weird rotary encoder sticks. It makes me wonder if later revisions of this game simplified the controls.
https://gamehistory.org/powerupbaseball/
The game actually runs on Incredible Technologies 32-bit hardware (used by Golden Tee 98/99, World Class Bowling, and Shuffle Shot). Most likely because it's designed to be played with trackballs...
It actually supports 2 players each with a trackball and 5-buttons, so a really unique control panel is required.
I recently put together my own conversion after picking up a reasonably priced Golden Tee 99 PCB.
It uses 16 27c080 EPROMs so the ROMs may end up costing you more than the pcb
The conversion is mostly just a ROM swap though there are some SMD Jumpers that need to be changed and some of them are located in really annoying spots.
instructions here: https://github.com/DickBlackshack/PowerUpBaseball/blob/master/docs/PCBGuide.txt
I'm curious if anyone else has tried this. I haven't really been able to play it due to the trackball requirement.
Though strangely the location test cabinet photo from the article shows it with joysticks and only 4 buttons per player:
The game definitely references "Trackballs" in the instructions and test mode, so they're not some weird rotary encoder sticks. It makes me wonder if later revisions of this game simplified the controls.
